Lubricating device for motor transmission mechanism.



G. W. DUNHAM. LUBRlCATING DEVICE FOR MOTOR TRANSMISSION MECHANISM.

APPLICATION FILED MAY 3. 191latented July 6, 1915.

nan-an snares GEORGE W. DUN HAM, OF DETROIT, MICHIGAN, ASSIGNOR T CHALMERS MOTOR COMPANY, OF DETROIT,

LUBRICATING DEVICE FOR MOTOR Application filed May 3, 1911.

,Mechanism, of which the following is a specification, reference being hadtherein to the accompanying drawings.

The invention relates to motor transmission and more particularly to constructions designed for-use on motor vehicles. In the standard .constructions of mechanisms of this type it is usual to arrange the variable speed transmission in a housing adjacent to the motor crank case, and with certain constructions the fly-wheel and the main clutch for coupling the engine to the transmission,

are also located in this housing. For lubrieating that echanism in the engine casing the splas system is usually employed, but various expedients have been used for maintaining the supply of lubricant in the transmission housing.

It 'is the object .of the present invention to insure the maintenance of the lubricant in the'transmission housing by utilizing the splash in the crank case for constantly feeding lubricant to said housing. This purpose is accomplished by the construction as hereinafter set forth.

In the drawings,-Figure 1 is a vertical longitudinal section through a portion of the crank case and the adjacent transmission housing; Fig. 2 is a cross section through the crank casehousing on line wm Fig. 1.

A is the crank case housing, B the crankthere'in, C the fly-wheel and D a housing for said fly-wheel and the transmission mechanism. Both the crank case and the housing are constructed to form therein splash chambers. The crank case A contains a suitable quantity of the lubricantwhich is maintained at a constant level by any suitable means of supply (not shown).

Specification of Letters Patent.

into the latter,

v lower passages for MICHIGAN, A CORPORATION OF MICHIGAN.

TRANSI/IISSION MECHANISM.

Patented July 6, 1915. semi in. 624,822.

To supply the lubricant to the transmission housing, I case at one side thereof, a pocket or receptacle E which receives lubricant splashed by the crank and drained down the sides of the case. with the transmission housing 'so as to drain and consequently whenever the engine is in motion there will be a constant feed of lubricant from the casing A to the casing D. The amount of this feed'may be regulated by the size or extent of the I receptacle E and when suitably proportioned the amount fed Will be equal to the requirements. If however, a surplus is fed into the case Dthis may be returned into the case A by a drainage connection such as indicated at F.

What I claim as my invention is:

1. The combination with a crank-case and transmission housing and a partition between the same formed with upper and lubricant, of means withfor receiving lubricant and conducting the same to the uppermost of said passages, and a crank-shaft extending through the crank-case having a bearing in said partition.

2. The combination with an engine crankcase and a transmission housing separated by a partition, of a crankshaft having a bearing in said partition, a comparatively narrow receptacle extending along one of the crankcase walls and open to receive the splashed lubricant, said receptacle being disposed at a level above the bottom of the crank-case, and having a drainage connection through said partition to thetransmission housing, the partition being oriliced to ermit return drainage from the transmis sion housin to the crank-case.

In testimony whereof I aiiix my signature in presence of two witnesses.

-. GEORGE "W. DUN HAM.

in the crank-case lVitnesses C. E. GREGORY, RAY J. MAUER.

arrange within the crank This receptacle E is connected 

